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Electrical installation 5

LDCDS−MC−PBx DE/EN 3.0



H1_E_INST−PBS_Uebrate_LtgLaenge

Specification of the transmission cable

 Note!

Only use cables complying with the listed specifications of the PROFIBUS user

organisation.

Field Values

Specific resistance

135 ... 165

W/km, (f = 3 ... 20 MHz)

Capacitance per unit length

£ 30 nF/km

Loop resistance

< 110 W/km

Core diameter > 0.64 mm

Core cross−section > 0.34 mm

Cores Twisted double, insulated and shielded

Baud rate / length of bus cable

Baud rate [kBit/s] Length [m]

9.6 − 93.75 1200

187.5 1000

500 400

1500 200

3000 − 12000 100

1 2 ... 32 33 34 35 36 37 38 39 40 41 42

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